US3682819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating and fuel oil compositions
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1970-01-30
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Granted: 1972-08-08
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Expires: 1990-01-30
Abstract
Abstract LUBRICATING OIL OR FUEL OIL COMPOSITIONS CONTAINING AS ANTIWEAR ADDITIVES AN AMINE SALT OF A COMPOUND OF ONE OF THE FOLLOWING FORMULAE: X1<(-Y(=Z1)(-Z2H)-X2-C(-R5)(-R6)-(C(-R3)(-R4))N-C(-R1) (-R2)-), OR X1<(-Y(-Z1H)-X5-C(-R2)(-R6)-(C(-R3)(-R4))N -C(-R2)(-R1)-) WHERE X1 AND X2 SIMILAR OR DISSIMILAR ARE OXYGEN OR SULPHUR; Y IS PHOSPHORUS OR ARSENIC; Z1 AND Z2 SIMILAR OR DISSIMILAR ARE OXYGEN OR SULPHUR; R1, R2, R3, R4, R5 AND R6 ARE HYDROGEN OR HYDROGEN- AND CARBON-CONTAINING GROUPS; PROVIDED AT LEAST ONE OF R1, R2, R5 AND R6 IS A HYDROGENAND CARBON-CONTAINING GROUP; AND N IS ZERO OR AN INTEGER FROM ONE TO SIX INCLUSIVE.
Inventors
- 👤 Arthur Leslie Morris
- 👤 Peter J Morris
- 👤 Dennis J Simpkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:03
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10M; C10M137/00; C10M137/02; C10M137/04; C10M137/08; C10M137/10; C10M137/105; C10M139/00; C10L1/26; C10L1/2633; C10L1/2658; C10L1/30; C10L1/301; C10M2203/00; C10M2203/10; C10M2203/102; C10M2203/108; C10M2207/00; C10M2207/28; C10M2207/282; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/086; C10M2209/10; C10M2209/11; C10M2209/111; C10M2209/112; C10M2219/00; C10M2219/04; C10M2219/044; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/043; C10M2223/047; C10M2227/00; C10M2227/06; C10N; C10N2010/00; C10N2010/10; C10N2060/00; C10N2060/04
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |